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Page number:710 
Remarks (internal):Kirschsteiniothelia emarceis ascospores are similar to that of K. populi (Tracy & Earle) You Z. Wang, Aptroot & K.D. Hyde, K. recessa (Cooke & Peck) D. Hawksw., K. umbrinoidea (Pass.) You Z. Wang, Aptroot & K.D. Hyde, and K. xera (Fairm.) You Z. Wang, Aptroot & K.D. Hyde, being brown to dark brown, one-septate and have asymmetrical ends (Hawksworth 1985a, Wang et al. 2004). It differs from all other Kirschsteiniothelia species by having sparse ascomatal hairs (Figs. 33-35). Its anamorph in culture and on the natural substrate produce oblong to obclavate, dark brown conidia with several septa, typical of Dendryphiopsis (Hughes 1953, Figs. 43-64). The conidia of the anamorph in culture were smaller and lighter than on the substrate as with K. lignicola. It is not unusual that characters in culture differ from those of the substrate, but because we were unable to obtain an isolate from the anamorph we cannot unequivocally state these are the same species. The phylogenetic analysis shows K. emarceis to form a sister relationship with K. aethiops and K. lignicola, with a long branch length (Fig. 2) 
Description type:Original description 
Description:Kirschsteiniothelia emarceis S. Boonmee & K.D Hyde sp. nov. Figs. 32-64
MycoBank MB561033
Ascomata 109-280 µm high x 101-318 µm diam, dark brown to black, clustered, solitary or scattered, superficial, subglobose to globose, slightly immersed, base flattened, with central ostiole, but unclear, with a few sparse hair-like setae (Figs. 32-34). Peridium 12- 40 µm thick, composed of 3-4 layers, comprising cells of textura angularis; inner layer cells pale brown, but cells of outer layer black (Fig. 35). Hamathecium comprising numerous narrow filiform pseudoparaphyses, 1-2 µm wide, hyaline, embedded in a gelatinous matrix (Fig. 36). Asci 88-140 3 18-24 µm, eight-spored, bitunicate, fissitunicate, cylindrical to clavate, apically rounded, pedicel ca. 3-13 µm long and with small ocular chamber ca. 2 µm wide (Figs. 37-39). Ascospores (23.5-)25-28 x 8-9(-10) µm (av = 27 x 9 mm, n = 20), biseriate, ellipsoidal, slightly curved, septum median to supra-median, dull green, becoming brown to dark brown at maturity, one-septate, two-celled, smooth walled, lacking a mucilaginous sheath (Figs. 40-42). Ascospores germinating on MEA within 12 h (Fig. 43). Colonies on MEA, reaching up to 2 cm diam in 7 d at 25-28 C and within a month covering Petri dish. Aerial mycelium, radiating outward, effuse, hairy, edge fimbriate, colony dense, dull green to dark brown. Mycelium immersed and superficial, dark brown; hyphae septate, ca. 5 µm wide (Fig. 44). Conidiophores produced on MEA 32-92 µm long, 5-7 µm thick, branched at apex, brown to dark brown, smooth (Figs. 45-50). Conidia (21-)27-28(-36) 3 9- 13(-15) µm, reddish brown to dark brown, 1-2(-3) transverse septate, constricted at septa, smoothwalled, rounded at the ends, fusiform to obclavate (Figs. 51-56).
Anamorph also growing on type material. Conidiophores erect, 162-271 x 7-14 µm, branched apically, brown to dark brown, smooth, conidia forming at apex (Figs. 57-61). Conidia (40-)45- 56(-67) x (10-)14-15(-17) µm, oblong to obclavate, grayish brown to dark brown, 3-4(-5) septate, constricted at septa, smooth-walled (Figs. 62-64).
Specimens examined. Thailand, Chiang Mai: Mae Taeng, Ban Pha Pae, Mushroom Research Center, ca. 900 msl. (N19°17.123’ E 98°44. 009’), on dead wood of unidentified tree, 6 Sep 2009, Saranyaphat Boonmee (Holotype MFLU10-0037), ex-type culture: MFLUCC10-0106 and IFRDC2181.
Habitat. On dead wood of unidentified tree.
Mode of life. Saprobic.
Distribution. Chiang Mai, Thailand.
 
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